Is it really necessary to use SLI or CrossFire ?
Well , it really depends mostly on the resolutions and games you play , resolutions like 1920×1200 and higher benefit more from SLI or CrossFire than resolutions like 1600×1200 or lower (I dont mean SLI or CrossFire wont be good for resolutions like 1600×1200 or lower , i am just saying that SLI or CrossFire shines in higher resolutions.) This(MultiGPU technology) has been more optimized though and has become more mature than before, i mean in the first years of MiltiGPU technology the drivers werent as good as they are now and also not all games took advantage from MultiGPU, but things have gotten better(but not the best, because there are still games that dont take advantage MultiGPU like Flight Simluator X and there are still lots of driver problems too.)So in some of today games that really drain a lot of power from GPU, MultiGPU performs good at low resolutions (again in some games). Also as i said , it depends on what games (with what settings) you play , for example if you just
